/**
 * @Author lzc
 * @Date 2022/7/22 15:24
 */
public class FloatDemo {
    public static void main(String[] args) {
//        System.out.println(1-0.1==0.9);
//        System.out.println(1-0.9==0.1);
//        System.out.println(1-0.9);

//        System.out.println(1/0);
        System.out.println(1.0/0);
        System.out.println(0.0/0);
        
    }
}
